Multi-way valve

Abstract

Provided in the present application is a multi-way valve, which comprises a valve housing and a valve core component arranged in the valve housing, the valve core component comprising a first valve core, a second valve core, and an elastic support assembly arranged between the first valve core and the second valve core, wherein the elastic support assembly is configured to support the first valve core, and the first valve core is limited between the valve housing and the elastic support assembly; and the second valve core abuts against the bottom wall of the cavity of the valve housing by means of the elastic force of the elastic support assembly. In this solution, the elastic support assembly can press the first valve core while supporting the second valve core, which prevents failure of the valve core component due to the valve core moving under the impact of the fluid flowing through the valve core, thereby improving the stability and sealing performance of the valve core component.

Description

Multi-way valve

[0001] This application claims priority to a patent application filed with the State Intellectual Property Office of China on November 16, 2023, with application number 202311534488.1 and title “Multi-port Valve”;

[0002] This application claims priority to a patent application filed with the State Intellectual Property Office on November 16, 2023, with application number 202323113128.2 and title “Valve Core Component and Multi-way Valve”;

[0003] This application claims priority to a patent application filed with the State Intellectual Property Office on November 16, 2023, with application number 202323106240.3 and title “Valve Core Component and Multi-way Valve”;

[0004] This application claims priority to a patent application filed with the State Intellectual Property Office on November 16, 2023, with application number 202323120425.X and title “Valve Core Component”;

[0005] This application claims priority to a patent application filed with the State Intellectual Property Office on November 16, 2023, with application number 202323118213.8 and title “Multi-port Valve”;

[0006] This application claims priority to the patent application submitted to the State Intellectual Property Office on November 16, 2023, with application number 202323105758.5 ​​and invention name "Multi-way Valve". Technical Field

[0007] The present application relates to the technical field of multi-way valves, and in particular to a multi-way valve. Background Art

[0008] In conventional multi-way valves, the valve core of the valve core assembly is typically installed within the valve housing and serves to form a diversion flow path. Rotating the valve core allows for adjustment of the openings at both ends of the diversion flow path, thereby enabling rapid adjustment to various operating conditions of the multi-way valve in which the valve core assembly resides. However, during use, the valve core of conventional valve core assemblies is susceptible to fluid pressure entering the diversion flow path, causing movement. This can lead to unstable installation of the valve core, potentially causing the diversion flow path to fail and compromising the performance of the multi-way valve. Summary of the Invention

[0009] The present application provides a multi-way valve to solve the problem of unstable valve core installation in the valve core component in the prior art.

[0010] In order to solve the above problems, the present application provides a multi-way valve, which includes a valve housing and a valve core component arranged in the cavity of the valve housing. The valve core component includes a first valve core, a second valve core and an elastic support assembly arranged between the first valve core and the second valve core. The elastic support assembly is used to support the first valve core, and the first valve core is limited between the valve housing and the elastic support assembly; the elastic force of the elastic support assembly presses the second valve core against the bottom wall of the cavity of the valve housing.

[0011] Furthermore, the valve core component also includes a second valve core shaft connected to the valve housing, the elastic support assembly includes a metal sleeve and a second spring, the metal sleeve is fixedly sleeved on the outer periphery of the second valve core shaft, the second spring is sleeved on the outer periphery of the second valve core shaft and its two ends are respectively abutted against the metal sleeve and the top wall of the second valve core; the first valve core and the metal sleeve are matched with a stopper at one end away from the second spring.

[0012] Furthermore, one end of the second valve core shaft is located at the center of the first valve core, the other end of the second valve core shaft is located at the center of the second valve core, the second valve core rotates around the second valve core shaft, and there is a gap between the metal sleeve and the second valve core shaft.

[0013] Furthermore, the metal sleeve has a first section and a second section that are connected to each other, the second spring abuts against one side of the first section, and the other side of the first section cooperates with the first valve core stop; or, the second spring abuts against a side of the first section facing away from the second section, and the side of the second section facing away from the first section cooperates with the first valve core stop.

[0014] Furthermore, the valve core component also includes a pressing plate and a sealing member sleeved on the second valve core shaft. The pressing plate is fixedly connected to the second valve core shaft. The second spring is located between the pressing plate and the metal sleeve. The sealing member is located between the pressing plate and the second valve core.

[0015] Furthermore, the bottom of the valve housing has a limiting hole, and the valve core component also includes a press-fitting part. The first valve core is located on the side of the second valve core away from the limiting hole, and one end of the second valve core shaft is located in the limiting hole. The press-fitting part is at least partially arranged in the limiting hole and is pushed and fitted with the second valve core shaft to press the second valve core shaft into the limiting hole and limit the axial upward movement of the second valve core shaft.

[0016] Furthermore, the multi-way valve also includes a sleeve injection-molded and embedded in the limiting hole, one end of the second valve core shaft is located in the sleeve, and the press-fitted part is at least partially arranged in the sleeve and cooperates with the second valve core shaft and the sleeve to limit the position; the press-fitted part has an external thread, the sleeve has an internal thread, and the press-fitted part and the sleeve are threadedly connected.

[0017] Furthermore, the second valve core shaft includes an interconnected shaft body and a limiting end plate. The limiting end plate is arranged at one end of the shaft body and is located in the limiting hole. The radial dimension of the limiting end plate is larger than the radial dimension of the shaft body. The press-fitting part is sleeved on the outer periphery of the shaft body and is pushed and fitted with the side of the limiting end plate away from the bottom surface of the limiting hole.

[0018] Furthermore, the valve core component also includes a press-fit part and a slide. The slide is arranged in the valve housing and the second valve core rotates circumferentially on the slide surface. The press-fit part is connected to the valve housing, and the slide is clamped between the press-fit part and the valve housing.

[0019] Furthermore, one end of the press-fitting piece has a press-fitting protrusion, and the press-fitting protrusion and the sliding piece are push-fitted to press the sliding piece onto the bottom of the cavity of the valve housing during the installation of the press-fitting piece.

[0020] Furthermore, the press-fitting protrusion has a first limiting slope, and the slide has a through hole for passing through the press-fitting part. The radial size of the through hole gradually decreases in the direction approaching the bottom of the valve housing and forms a second limiting slope adapted to the first limiting slope. The first limiting slope and the second limiting slope are pushed together.

[0021] Furthermore, the press-fitting part includes a bolt section and a press-fitting section. The outer periphery of the bolt section has an external thread. The radial dimension of the press-fitting section gradually increases in a direction away from the bolt section. The press-fitting section forms a press-fitting protrusion.

[0022] Furthermore, the bottom of the valve housing has a sealing groove opening toward the inside of the valve housing cavity. The multi-way valve also includes a flow path sealing gasket arranged in the sealing groove, and the sliding vane is located on the top surface of the flow path sealing gasket.

[0023] Furthermore, the valve housing is provided with a plurality of first flow ports, a plurality of second flow ports, and a plurality of first flow cavities, and the plurality of first flow cavities are connected to the plurality of first flow ports in a one-to-one correspondence; the first valve core has a plurality of first flow channels, and the first flow channels are connected to the corresponding first flow cavities, and the connection between the first flow ports is switched by the rotation of the first valve core; the second valve core has a plurality of second flow channels, and the second flow channels are connected to the corresponding second flow ports, and the connection between the second flow ports is switched by the rotation of the second valve core; the second flow channels are not connected to the first flow channels.

[0024] Furthermore, the bottom wall of the valve housing is a bottom plate, multiple first flow ports are arranged at the edge of the bottom plate, multiple second flow ports are arranged in the middle of the bottom plate, and the circumferential side wall of the valve housing includes an outer wall and an inner wall, and multiple first flow cavities are formed between the outer wall and the inner wall.

[0025] Furthermore, the second valve core is located in the middle of the base plate, one end of the first valve core along the axis of the multi-way valve is located at the top of the second valve core, and the other end of the first valve core along the axis of the multi-way valve is against the top of the valve shell; the first circulation channel and its corresponding two first circulation cavities and two first circulation ports constitute a first flow path, and the second circulation channel and its corresponding two second circulation ports constitute a second flow path; the inlet and outlet of the first circulation channel are both located circumferentially of the first valve core, and the inner wall is provided with an opening opposite to the circumferential inlet and outlet of the first valve core; the inlet and outlet of the second circulation channel are both located at one end of the second valve core facing the base plate.

[0026] Furthermore, a cavity area surrounded by the first valve core, the second valve core and the valve housing forms a back pressure cavity, the fluid in the second valve core does not flow with the fluid in the back pressure cavity, and the fluid in the first valve core flows with the fluid in the back pressure cavity.

[0027] Furthermore, the multi-way valve also includes a valve core sealing gasket arranged around the first valve core, the valve core sealing gasket is arranged on the side wall of the cavity of the valve housing and is sealed with the outer periphery of the first valve core, and the valve core sealing gasket is provided with a first opening penetrating the side wall of the valve core sealing gasket along the axial direction of the first valve core. The fluid in the first valve core flows through the first opening on the side wall of the valve core sealing gasket and the fluid in the back pressure cavity.

[0028] Furthermore, the multi-way valve also includes a support seat, which is arranged on the bottom wall of the cavity of the valve housing and partially parallel to the side wall of the cavity of the valve housing. The support seat is arranged on the outer periphery of the second valve core and supports the valve core sealing gasket. The cavity area surrounded by the support seat, the first valve core and the second valve core forms a back pressure cavity.

[0029] Furthermore, the support seat has a limiting protrusion and a first reset protrusion, and the limiting protrusion cooperates with the first opening to limit the relative rotation of the support seat and the valve core sealing gasket. The bottom of the first valve core has a second reset protrusion, and the first reset protrusion and the second reset protrusion cooperate in the circumferential stop direction.

[0030] Furthermore, the valve housing has a plurality of first flow ports and a plurality of second flow ports, the first valve core has a plurality of first flow channels, the first valve core is rotatably disposed in the cavity of the valve housing to switch the communication between the first flow ports; the second valve core is rotatably disposed in the cavity of the valve housing to make the second flow port opposite to the second valve core fully open or fully closed or partially closed.

[0031] Furthermore, the second valve core includes a valve plate, and the multi-way valve also includes a slide, which is arranged in the cavity of the valve housing. The slide has a third opening, and the third opening corresponds one-to-one to the second flow port; the valve plate rotates on the surface of the slide and seals with the slide to make the valve plate fully open or fully closed or partially close the third opening corresponding to it; wherein, the slide is also provided with a notch, and the notch is opposite to the bottom wall of the valve housing.

[0032] Furthermore, the multi-way valve also includes a valve core seat located in the valve shell cavity, the valve plate and the sliding plate are both located in the valve core seat, the inner wall of the valve core seat is provided with a groove and a stop protrusion, the sliding plate is located in the groove and is against the two ends of the stop protrusion; the valve plate rotates in the groove and can be against the two ends of the stop protrusion.

[0033] Furthermore, the valve core component also includes a second valve core shaft connected to the valve housing, and the multi-way valve also includes a metal sleeve, which is arranged on the second valve core shaft and connected to the second valve core shaft. The metal sleeve is inserted into the valve plate and cooperates with the valve plate to limit the position. The second valve core shaft is rotatably arranged to drive the metal sleeve to rotate, and the metal sleeve drives the valve plate to rotate.

[0034] Furthermore, the multi-way valve also includes an actuator, which is driven and connected to the first valve core. When the actuator drives the first valve core to rotate in the forward direction, the first valve core drives the second valve core to rotate together, and the flow condition of the multi-way valve is adjusted by changing the angle of the first valve core and the second valve core; when the actuator drives the first valve core to rotate in the reverse direction, the first valve core rotates alone, and the flow condition of the multi-way valve is adjusted by changing the angle of the first valve core.

[0035] Furthermore, the valve core component also includes a first transmission structure and a second transmission structure that cooperate with each other. The first transmission structure and the second transmission structure are respectively arranged on the second valve core and the first valve core. One of the first transmission structure and the second transmission structure includes a ratchet, and the other includes a plurality of pawls. The plurality of pawls are distributed along the circumference of the first valve core and cooperate with different ratchet teeth of the ratchet. The first transmission structure and the second transmission structure constitute a ratchet mechanism.

[0036] Furthermore, the first transmission structure is arranged on the side of the second valve core facing the first valve core, the first transmission structure has a ratchet groove, the ratchet groove has a guide surface extending along the circumference of the second valve core and a stop surface extending along the axial direction of the second valve core, the two ends of the guide surface are spaced apart in the axial direction of the second valve core to form a stop surface, the second transmission structure and the guide surface abut against each other and can move along the extension direction of the guide surface; when the actuator drives the first valve core to rotate in the forward direction, the second transmission structure and the stop surface abut against each other.

[0037] Furthermore, there are multiple ratchet grooves, and the multiple ratchet grooves are distributed along the circumference of the second valve core. The inclination direction and inclination angle of the multiple guide surfaces are the same. A stop surface is connected between any two adjacent guide surfaces, and the two ends of the stop surface along the axial direction of the second valve core are respectively connected to the end parts of the guide surfaces on both sides; there are multiple second transmission structures, and the multiple second transmission structures are distributed along the circumference of the first valve core and correspond to different ratchet grooves.

[0038] Furthermore, the second transmission structure includes a limit member and an elastic member, the limit member includes a push block, a fixed block and a connecting member, the fixed block is fixedly arranged at the bottom of the first valve core, one end of the push block is rotatably passed through the fixed block through the connecting member, the elastic member is a spring sheet, and the spring sheet is respectively in contact with the bottom of the first valve core and the push block to limit the other end of the push block in the ratchet groove. The second transmission structure is multiple, and the multiple push blocks are respectively matched with the ratchet grooves at different positions.

[0039] Furthermore, the bottom of the first valve core and the push block are provided with mounting grooves for installing spring plates. The spring plates include two interconnected plates, which have an angle between them and have an elastic tendency to rotate away from each other around the connection position. The two plates are respectively limited by the inner walls of the two mounting grooves.

[0040] Applying the technical solution of the present application, the multi-way valve includes a valve housing and a valve core component arranged in the cavity of the valve housing, the valve core component includes a first valve core, a second valve core and an elastic support assembly arranged between the first valve core and the second valve core, the elastic support assembly is used to support the first valve core, and the first valve core is limited between the valve housing and the elastic support assembly; the elastic force of the elastic support assembly presses the second valve core against the bottom wall of the cavity of the valve housing.

[0041] By adopting this solution, the elastic support component not only supports the second valve core but also presses the first valve core, which is beneficial to axially limiting the first valve core and the second valve core, avoiding the situation in the prior art where the valve core is easily moved under the impact of the flowing fluid, thereby causing the valve core component to fail, and improving the stability and sealing of the valve core component. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0043] FIG1 shows a schematic structural diagram of a multi-way valve provided in Example 1 of the present application;

[0044] FIG2 shows a cross-sectional view of the multi-way valve of FIG1 ;

[0045] FIG3 shows a schematic structural diagram of a valve core component of the multi-way valve of FIG1 ;

[0046] FIG4 shows a schematic diagram of the assembly of the first valve core and the second transmission structure in FIG3 ;

[0047] FIG5 shows a schematic diagram of the assembly of the second valve core and the first transmission structure in FIG3 ;

[0048] FIG6 shows a schematic structural diagram of the second transmission structure in FIG3 ;

[0049] FIG7 shows a schematic diagram of the assembly of the first valve core and the valve core sealing gasket of the multi-way valve of FIG1 ;

[0050] FIG8 shows an enlarged view of position A in FIG2 ;

[0051] FIG9 shows an enlarged view of position B in FIG2 ;

[0052] FIG10 shows a schematic diagram of the assembly of the shaft sleeve and the press-fitting member in the multi-way valve of FIG1 ;

[0053] FIG11 shows a schematic structural diagram of a first valve core in the multi-way valve of FIG1 ;

[0054] FIG12 is a schematic structural diagram of the first valve core in the multi-way valve of FIG1 from another perspective;

[0055] FIG13 shows a cross-sectional view of the first valve core in the multi-way valve of FIG1 ;

[0056] FIG14 is a schematic diagram showing the internal structure of the second valve core of the multi-way valve in FIG1 ;

[0057] FIG15 shows a bottom view of the multi-way valve of FIG1 ;

[0058] FIG16 shows a cross-sectional view of a multi-way valve provided in Example 2 of the present application;

[0059] FIG17 shows a cross-sectional view of the multi-way valve provided in the second embodiment of the present application from another perspective;

[0060] FIG18 is a schematic structural diagram of a valve core component of the multi-way valve of FIG16 ;

[0061] FIG19 shows an exploded view of FIG18 from a top view;

[0062] FIG20 shows an exploded view of FIG18 from a bottom-up perspective;

[0063] FIG21 is a schematic diagram showing the internal structure of the second valve core of the multi-way valve of FIG16 ;

[0064] FIG22 shows a schematic structural diagram of the support seat of the multi-way valve of FIG16 ;

[0065] FIG23 shows a bottom view of the multi-way valve of FIG16;

[0066] FIG24 shows a cross-sectional view of a multi-way valve provided in Example 3 of the present application;

[0067] FIG25 shows a schematic diagram of the assembly of the valve plate, the sliding plate, and the valve core seat in the multi-way valve of FIG24 ;

[0068] FIG26 shows a schematic diagram of the assembly of the valve plate, the sliding plate, and the valve core seat in the multi-way valve of FIG25 from another perspective;

[0069] FIG27 shows a schematic diagram of the assembly of the valve plate, the sliding plate, and the metal sleeve in the multi-way valve of FIG24 ;

[0070] FIG28 shows a schematic diagram of the assembly of the sliding plate, valve plate, and shaft sleeve in the multi-way valve of FIG24 ;

[0071] FIG29 shows a schematic structural diagram of the valve plate in the multi-way valve of FIG24 ;

[0072] FIG30 shows a schematic structural diagram of the first valve core in the multi-way valve of FIG24 ;

[0073] FIG31 shows a schematic structural diagram of a valve core component of a multi-way valve provided in Example 4 of the present application;

[0074] FIG32 shows a schematic assembly diagram of the second valve core, the first transmission structure, and the second transmission structure in FIG31 .

[0075] The above drawings include the following reference numerals: 10, valve core component; 11, first valve core; 1101, first circulation channel; 11011, first flow channel; 11012, second flow channel; 11013, third flow channel; 11014, fourth flow channel; 111, first circular plate; 112, second circular plate; 113, first partition plate; 114, second partition plate; 115, third partition plate; 116, second stop block; 12, second valve core; 1201, second circulation channel; 12011, fifth flow channel; 12012, sixth flow channel; 12013, Seventh flow channel; 12014, eighth flow channel; 121, first sleeve; 122, second sleeve; 1231, first baffle; 1232, second baffle; 1233, third baffle; 1234, fourth baffle; 1235, fifth baffle; 1236, sixth baffle; 1237, seventh baffle; 124, blocking plate; 125, valve disc; 1251, first plate; 1252, second plate; 1253, limiting opening; 13, first transmission structure; 131, ratchet groove; 1311, guide surface; 1312, stop surface; 132, limiting block; 133, first limiting plate; 134, ratchet; 14, second transmission structure; 141, limiting member; 1411, push block; 1412, fixing block; 1413, connecting member; 1414, limiting column; 142, elastic member; 1421, spring; 1422, first spring; 143, mounting groove; 144, pawl; 145, second limiting plate; 1451, limiting groove; 15, press-fitting member; 151, bolt section; 152, press-fitting section; 1521, first limiting inclined surface; 16, valve core shaft; 161, first valve core shaft; 162, second valve core shaft; 1621, shaft body; 1622, limiting end plate; 17, sliding vane; 1701, second limiting inclined surface; 1702, third opening; 1703, notch; 171, third plate; 172, fourth plate; 18, elastic support assembly; 181, metal sleeve; 1811, first section; 1812, second section; 182, second spring; 20. Valve housing; 201. Limiting hole; 202. First circulation cavity; 21. Bottom plate; 211. First circulation port; 212. Second circulation port; 22. Outer wall; 23. Inner wall; 30. Bushing; 301. Groove; 41. Flow path gasket; 42. Valve core gasket; 421. First opening; 422. Second opening; 43. Pressing piece; 44. Sealing element; 501. First flow path; 502. Second flow path; 503. Back pressure cavity; 60. Support seat; 61. Limiting protrusion; 62. First reset protrusion; 70. Valve core seat; 71. Groove; 72. Stop protrusion; 73. First stop block. DETAILED DESCRIPTION

[0076] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0077] As shown in Figures 1 to 32, an embodiment of the present application provides a multi-way valve, which includes a valve housing 20 and a valve core component 10 arranged in the cavity of the valve housing 20. The valve core component 10 includes a first valve core 11, a second valve core 12 and an elastic support component 18 arranged between the first valve core 11 and the second valve core 12. The elastic force of the elastic support component 18 presses the second valve core 12 against the bottom wall of the cavity of the valve housing 20.

[0078] In this embodiment, the elastic support component 18 not only supports the second valve core 12 but also presses the first valve core 11, which is beneficial to axially limit the first valve core 11 and the second valve core 12, avoiding the situation in the prior art where the valve core is easily moved under the impact of the fluid flowing through, thereby causing the valve core component 10 to fail, thereby improving the stability and sealing of the valve core component 10.

[0079] Specifically, the first valve core 11 and the second valve core 12 are coaxially arranged, so that the overall occupied area of ​​the multi-way valve is small and the structure is compact. The first valve core 11 and the second valve core 12 are both arranged in the cavity of the valve housing 20 and are limited by the side wall of the cavity of the valve housing 20. The first valve core 11 and the valve housing 20 form a plurality of first flow paths 501, and the second valve core 12 and the valve housing 20 form a plurality of second flow paths 502. The first flow paths 501 and the second flow paths 502 are spaced apart, which increases the types of working conditions that the valve core component can adjust, which is conducive to improving the performance of the valve core component. The elastic support component 18 is used to support the first valve core 11. The first valve core 11 is limited between the valve housing 20 and the elastic support component 18 to avoid the situation where the first flow path 501 and the second flow path 502 are prone to internal leakage.

[0080] The first flow path 501 and the second flow path 502 are separated, so that the first flow path 501 passing through the first valve core 11 is not connected to the second flow path 502 passing through the second valve core 12. The first valve core 11 and the second valve core 12 can be controlled independently to form a variety of different flow modes to meet user needs. Therefore, the first valve core 11 or the second valve core 12 can be operated independently.

[0081] As shown in Figures 8, 16 and 24 (in Examples 1, 2 and 3), the valve core component 10 also includes a second valve core shaft 162 connected to the valve housing 20, and the elastic support assembly 18 includes a metal sleeve 181 and a second spring 182. The metal sleeve 181 is fixedly sleeved on the outer periphery of the second valve core shaft 162, and the second spring 182 is sleeved on the outer periphery of the second valve core shaft 162 and its two ends are respectively in contact with the top walls of the metal sleeve 181 and the second valve core 12, and the first valve core 11 and the metal sleeve 181 are matched with one end stop facing away from the second spring 182.

[0082] Such a setting is beneficial to the installation and limitation of the elastic support component 18, avoiding the situation where the elastic support component 18 is prone to movement, resulting in the failure of its supporting or pressing effect on the first valve core 11 and the second valve core 12. Furthermore, the second valve core shaft 162 is also beneficial to ensuring the coaxiality of the valve housing 20, the first valve core 11, the second valve core 12 and the elastic support component 18, which facilitates the installation of the valve core component 10 and is beneficial to ensuring the performance of the valve core component.

[0083] On the other hand, the metal sleeve 181 supports the first valve core 11 and limits one end of the second spring 182. The second spring 182 and the metal sleeve 181 press the second valve core 12, ensuring the reliability of the support and installation of the first valve core 11 and the second valve core 12 in the valve core component. Specifically, the shape and structure of the metal sleeve 181 can be adjusted according to actual conditions to adapt to different first valve cores 11 and second valve cores 12. After the valve core component is installed, the second spring 182 is in a compressed state. The elastic force generated by the expansion tendency of the second spring 182 acts on the metal sleeve 181 and the second valve core 12, and facilitates the pressure of the second valve core 12.

[0084] In this embodiment, one end of the second valve core shaft 162 is located at the center of the first valve core 11, and the other end of the second valve core shaft 162 is located at the center of the second valve core 12 and connected to the valve housing 20. The second valve core 12 rotates around the second valve core shaft 162, and a gap is provided between the metal sleeve 181 and the second valve core shaft 162. This arrangement limits the coaxiality of the second valve core 12, the first valve core 11, and the valve housing 20 via the second valve core shaft 162, thereby ensuring the reliability and stability of the valve core component 10.

[0085] In this embodiment, the metal sleeve 181 includes a first section 1811 and a second section 1812 that are interconnected. The second spring 182 abuts against one side of the first section 1811, and the other side of the first section 1811 engages with a stopper of the first valve core 11. Alternatively, the second spring 182 abuts against a side of the first section 1811 that faces away from the second section 1812, and the side of the second section 1812 that faces away from the first section 1811 engages with a stopper of the first valve core 11. With this arrangement, the metal sleeve 181 supports the first valve core 11 and limits one end of the second spring 182. The second spring 182 and the metal sleeve 181 press against the second valve core 12, thereby ensuring the reliability of the support and installation of the first and second valve cores 11 and 12 in the valve core component 10. Specifically, the shape and structure of the metal sleeve 181 can be adjusted according to actual conditions to adapt to different first valve cores 11 and second valve cores 12. After the valve core component 10 is installed, the second spring 182 is in a compressed state. The elastic force generated by the extension trend of the second spring 182 will act on the metal sleeve 181 and the second valve core 12 and is conducive to pressing the second valve core 12.

[0086] In the second embodiment shown in Figures 16 to 23, the metal sleeve 181 has a first section 1811 and a second section 1812 connected to each other. The second spring 182 abuts against the side of the first section 1811 facing away from the second section 1812, and the side of the second section 1812 facing away from the first section 1811 engages with the first valve core 11. In this embodiment, the metal sleeve 181 includes an abutment plate, which forms the first section 1811. The first section 1811 is located below the second section 1812 and has a larger radial dimension than the second section 1812. The lower surface of the abutment plate is used to abut against and limit the second spring 182. The end of the second section 1812 facing away from the abutment plate is used to support the first valve core 11. This arrangement increases the sleeve connection area between the metal sleeve 181 and the second valve core shaft 162, which is beneficial to ensuring the reliability and stability of the connection between the metal sleeve 181 and the second valve core shaft 162. On the other hand, by setting the abutment section, it is beneficial to ensure the limiting effect on one end of the second spring 182.

[0087] In the first embodiment shown in Figures 1 to 15 and the third embodiment shown in Figures 24 to 30 , the metal sleeve 181 comprises a first section 1811 and a second section 1812 connected to each other. The second spring 182 abuts one surface of the first section 1811, while the other surface of the first section 1811 engages with the first valve core 11. In this embodiment, the metal sleeve 181 includes an abutment plate, which forms the first section 1811. The first section 1811 is located above the second section 1812 and has a smaller radial dimension than the second section 1812. The second spring 182 is sleeved around the outer periphery of the second section 1812 and abuts the lower surface of the abutment plate. The upper surface of the abutment plate is used to support the first valve core 11. This arrangement increases the contact area between the metal sleeve 181 and the second valve core shaft 162 or the valve core shaft 16, thereby ensuring the reliability and stability of the connection between the metal sleeve 181 and the second valve core shaft 162 or the valve core shaft 16. The provision of the abutment section also helps to ensure a retaining effect on one end of the second spring 182. On the other hand, the second spring 182 is sleeved on the outer periphery of the second section 1812 , which is beneficial to the installation and positioning of the second spring 182 .

[0088] Preferably, as shown in FIG8 (in the first embodiment), the valve core component 10 further includes a pressing piece 43 and a sealing member 44 sleeved on the second valve core shaft 162. The pressing piece 43 is fixedly connected to the second valve core shaft 162, the second spring 182 is located between the pressing piece 43 and the metal sleeve 181, and the sealing member 44 is located between the pressing piece 43 and the second valve core 12. In this arrangement, the sealing member 44 is used to seal the second valve core shaft 162 and the second valve core 12 to prevent internal leakage, and the sealing member 44 is blocked by the pressing piece 43 to prevent the sealing member 44 from falling out. At the same time, the second spring 182 can press the pressing piece 43, further ensuring the reliability and stability of the position limit of the sealing member 44.

[0089] The valve core component 10 also includes a first valve core shaft 161. One end of the first valve core shaft 161 passes through the first valve core 11, and the other end extends out of the valve housing 20 to facilitate connection between the valve core component 10 and an actuator (such as an actuator). One end of the first valve core shaft 161 is located at the center of the first valve core 11, and the other end of the first valve core shaft 161 is located at the center of the second valve core 12 and connected to the valve housing 20.

[0090] It should be noted that, in this embodiment, the first valve core shaft 161 and the second valve core shaft 162 may be provided separately, or may be provided integrally to form the valve core shaft 16 .

[0091] In the first embodiment as shown in Figure 2 and the second embodiment as shown in Figures 16 and 17, the first valve core shaft 161 and the second valve core shaft 162 are separately arranged, the elastic support assembly 18 is arranged on the second valve core shaft 162, the first valve core 11 is provided with a matching groove or matching hole opening toward the second valve core 12, and one end of the first valve core shaft 161 is located in the matching groove or matching hole. This arrangement is conducive to the tightening of the second valve core shaft 162, and avoids the situation where the second valve core shaft 162 easily drives the elastic support assembly 18 to move as a whole.

[0092] In embodiment three as shown in Figure 24, the first valve core shaft 161 and the second valve core shaft 162 are integrally arranged to form the valve core shaft 16, and the elastic support assembly 18 is arranged on the valve core shaft 16 and located between the first valve core 11 and the second valve core 12. This arrangement is conducive to ensuring the coaxial rotation of the first valve core 11 and the second valve core 12, thereby ensuring the reliability of the valve core component 10.

[0093] Preferably, the first valve core 11 and / or the second valve core 12 include a guide structure, and the metal sleeve 181 includes a guide section, which cooperates with the guide structure. This arrangement further ensures the coaxiality between the first valve core 11, the second valve core 12, and the metal sleeve 181, and facilitates the installation of the valve core component 10. The presence or absence of the guide structure and the guide section, as well as their arrangement, can be adjusted according to actual circumstances and are not limited to the embodiment shown in this application.

[0094] In the embodiments shown in Figures 1 to 30 (Example 1, Example 2 and Example 3), the bottom of the valve housing 20 has a limiting hole 201, the valve core component 10 also includes a press-fitting part 15, the first valve core 11 is located on the side of the second valve core 12 away from the limiting hole 201, one end of the second valve core shaft 162 is located in the limiting hole 201, and the press-fitting part 15 is at least partially arranged in the limiting hole 201 and is pushed and fitted with the second valve core shaft 162 to press the second valve core shaft 162 into the limiting hole 201 and limit the axial upward movement of the second valve core shaft 162. Among them, the second valve core 12 rotates around the second valve core shaft 162, and the second valve core shaft 162 is in contact with or not in contact with the bottom surface of the limiting hole 201. When the second valve core shaft 162 is not in contact with the bottom surface of the limiting hole 201, the second valve core shaft 162 can move in the tiny space between the press-fitting part 15 and the bottom surface of the limiting hole 201, and the slight movement of the second valve core shaft 162 can be ignored.

[0095] In this embodiment, the second valve core shaft 162 passes through the second valve core 12 and its two ends are respectively located in the limiting hole 201 and the first valve core 11. During installation, the second valve core shaft 162 is first installed so that one end of the second valve core shaft 162 penetrates into the limiting hole 201, and then the press-fitting part 15 is installed into the limiting hole 201. As the press-fitting part 15 is installed, the end of the second valve core shaft 162 extending into the limiting hole 201 is gradually pushed by the press-fitting part 15 and moves toward the bottom surface of the limiting hole 201 until the press-fitting part 15 is installed in place, completing the installation of the second valve core shaft 162. The press-fitting of the end of the second valve core shaft 162 extending into the limiting hole 201 is achieved by the press-fitting part 15, which avoids the situation where the second valve core shaft 162 is prone to violent axial movement along the valve core component 10 and affects the reliability of the valve core component 10, thereby improving the stability of the installation of the second valve core shaft 162.

[0096] As shown in Figures 9, 10, 16, 17, 24, 26 and 28, the multi-way valve also includes a sleeve 30 injection-molded and embedded in the limiting hole 201, one end of the second valve core shaft 162 is located in the sleeve 30, and the press-fitted part 15 is at least partially arranged in the sleeve 30 and is limitedly matched with the second valve core shaft 162 and the sleeve 30.

[0097] It should be noted that the shaft sleeve 30 , the limiting hole 201 , the press-fitting part 15 and the related principles in the embodiments provided in this application are all the same.

[0098] In this embodiment, the sleeve 30 is used to restrict and guide the installation of the second valve core shaft 162 and the press-fitting member 15, while also preventing the second valve core shaft 162 or the press-fitting member 15 from directly contacting or colliding with the inner wall of the limiting hole 201. Furthermore, the sleeve 30 is embedded in the limiting hole 201 by injection molding, which facilitates rapid processing and installation of the sleeve 30.

[0099] Specifically, the press-fitting element 15 has external threads, and the sleeve 30 has internal threads, with the press-fitting element 15 and the sleeve 30 being threadedly connected. This arrangement facilitates installation of the press-fitting element 15 and its ability to push against the second valve core shaft 162. It is understood that the operator can adjust the structure of the press-fitting element 15 and / or the sleeve 30 according to actual circumstances to ensure effective installation while maintaining effective push against the second valve core shaft 162. Examples are not provided here.

[0100] Preferably, the outer circumference of the sleeve 30 has multiple slots 301 extending axially along the retaining hole 201. These slots 301 are arranged along the circumference of the sleeve 30. This arrangement helps reduce the weight of the sleeve 30 and minimizes the contact area between the sleeve 30 and the inner wall of the retaining hole 201, facilitating injection molding and demolding of the sleeve 30. Alternatively, the sleeve 30 can be hollow to further reduce its weight while ensuring its functionality.

[0101] As shown in Figures 9 and 17, the second valve core shaft 162 includes a shaft body 1621 and a limiting end plate 1622, which are connected to each other. The limiting end plate 1622 is disposed at one end of the shaft body 1621 and is located within the limiting hole 201. The radial dimension of the limiting end plate 1622 is larger than the radial dimension of the shaft body 1621. The press-fitting member 15 is sleeved around the outer periphery of the shaft body 1621 and push-fits against the side of the limiting end plate 1622 facing away from the bottom surface of the limiting hole 201. As shown in Figure 24, in this embodiment, the first valve core shaft 161 and the second valve core shaft 162 are integrally provided as the valve core shaft 16, and the bottom end of the valve core shaft 16 has a limiting end plate 1622 with an enlarged radial dimension.

[0102] In this embodiment, the outer periphery of the limiting end plate 1622 is limitedly fitted with the inner wall of the sleeve 30 to ensure the coaxiality of the press-fitting part 15 and the second valve core shaft 162, wherein the limiting fit can be a clearance fit, an interference fit, etc. The press-fitting part 15 is sleeved on the outer periphery of the shaft body 1621 and abuts against the limiting end plate 1622. The external thread of the press-fitting part 15 is threadedly connected with the inner wall of the sleeve 30. As the press-fitting part 15 extends into the sleeve 30, the press-fitting part 15 gradually presses the limiting end plate 1622 downward until the press-fitting part 15 is tightened into place, completing the limiting installation of the second valve core shaft 162. It is understandable that the press-fitting of the limiting end plate 1622 does not necessarily have to be pressed tightly, that is, the distance between the bottom wall of the limiting hole 201 and the bottom wall of the limiting end plate 1622 does not allow the limiting end plate 1622 to move significantly along the axial direction of the valve core component 10.

[0103] On the other hand, in the embodiments shown in Figures 1 to 30 (Example 1, Example 2 and Example 3), the valve core component 10 also includes a slide 17, the slide 17 is arranged in the valve housing 20 and the second valve core 12 rotates circumferentially on the surface of the slide 17, and the slide 17 is clamped between the press-fit part 15 and the valve housing 20.

[0104] In this embodiment, the valve housing 20 has a plurality of second flow ports 212 (i.e., partial valve ports), and the structure of the slide 17 is at least partially adapted to the bottom of the valve housing 20 provided with the second flow ports 212 (in the embodiments shown in Figures 1 to 23, the structure of the slide 17 is adapted to the bottom of the valve housing 20 and is circular; in the embodiments shown in Figures 24 to 30, the structure of the slide 17 is adapted to the bottom portion of the valve housing 20 and is fan-shaped), and the slide 17 is provided with third openings 1702 corresponding to the plurality of second flow ports 212, and any one of the third openings 1702 is adapted to at least one second flow port. The through openings 212 are correspondingly arranged (as in the embodiments shown in Figures 1 to 23, a third opening 1702 is correspondingly arranged at any second circulation opening 212; as in the embodiments shown in Figures 24 to 30, a third opening 1702 is correspondingly arranged at some second circulation openings 212) to ensure the connection between the second circulation opening 212 and the second valve core 12. The second valve core 12 has multiple second circulation channels. The two second circulation openings 212 can be indirectly connected through a second circulation channel. The connection and disconnection between different second circulation openings 212 can be adjusted by rotating the second valve core 12. By clamping the slide 17, it is avoided that when the slide 17 is not firmly fixed and moves, the fluid passing through the flow hole of the slide 17 from the second valve core 12 will not flow into the two second flow ports 212 at the same time. The fluid directly circulates between the two second flow ports 212, causing internal leakage of the fluid. At the same time, the movement of the slide 17 is avoided and the flow resistance of the fluid is increased, thereby improving the installation and fixing effect of the slide 17, fully ensuring the stability of the slide 17, avoiding the possibility of movement of the slide 17, and thus avoiding the occurrence of internal leakage and the possibility of increased flow resistance.

[0105] The “movement of the slide 17 ” not only includes circumferential rotation or axial movement, but also includes movement along the axial direction of the valve housing 20 .

[0106] As shown in Figures 9, 17, and 24, the slide 17 abuts the bottom of the cavity of the valve housing 20. One end of the press-fitting member 15 has a press-fitting protrusion. The slide 17 is sandwiched between the press-fitting protrusion and the valve housing 20. The press-fitting protrusion and the slide 17 push and cooperate to press-fit the slide 17 onto the bottom of the cavity of the valve housing 20 during installation of the press-fitting member 15. This arrangement enables press-fitting of the slide 17 via the press-fitting protrusion, ensuring reliability and convenience of press-fitting. The press-fitting protrusion is at least partially located within the slide 17.

[0107] Specifically, the bottom of the valve housing 20 also has a sealing groove with an opening toward the inside of the valve housing 20 cavity. The multi-way valve also includes a flow path sealing gasket 41 arranged in the sealing groove. The shape of the sealing groove matches the shape of the flow path sealing gasket 41. The top of the flow path sealing gasket 41 protrudes from the opening of the sealing groove or is flush with the opening of the sealing groove. The slide 17 is located on the top surface of the flow path sealing gasket 41. The flow path sealing gasket 41 is used to seal the connection position between the second valve core 12 and the multiple second flow ports 212. The slide 17 is located at the opening of the sealing groove, and the slide 17 will block the opening of the sealing groove after being fixed. In this way, the slide 17 is pressed during the installation of the press-fitting part 15 through the press-fitting protrusion on the press-fitting part 15, so that the slide 17 can press the flow path sealing gasket 41 into the sealing groove and seal the opening of the sealing groove, thereby avoiding the situation in the prior art where the movement of the slide 17 causes poor sealing effect at the connecting position between the second valve core 12 and the multiple second flow ports 212, while limiting the movement of the slide 17, and improving the sealing effect between the second valve core 12 and the multiple second flow ports 212.

[0108] In this embodiment, in Example 1 as shown in FIG9 (the configurations of Examples 2 and 3 are the same as those of Example 1), the press-fitting protrusion has a first limiting slope 1521, and the slide 17 has a through hole for passing through the press-fitting part 15. The radial dimension of the through hole gradually decreases in a direction approaching the bottom of the valve housing 20 and forms a second limiting slope 1701 adapted to the first limiting slope 1521. The first limiting slope 1521 and the second limiting slope 1701 are guided and pushed together. This configuration facilitates the rapid processing and forming of the second limiting slope, and is conducive to ensuring the coaxiality of the slide 17 and the valve housing 20 during the process of clamping the slide 17, thereby improving the clamping and limiting effect of the slide 17, and can simultaneously limit the rotation of the slide 17, the axial movement of the slide 17 along the valve core component 10, and the radial movement of the slide 17 along the valve core component 10.

[0109] Preferably, the first limiting inclined surface 1521 and the second limiting inclined surface 1701 are both annular inclined surfaces. This arrangement is beneficial to further ensure the coaxiality of the sliding vane 17 and the valve housing 20.

[0110] Taking the first embodiment shown in Figure 9 as an example (the press-fitting member 15 in the second and third embodiments is the same as the press-fitting member 15 in the first embodiment), the press-fitting member 15 comprises a bolt segment 151 and a press-fitting segment 152. The outer periphery of the bolt segment 151 has an external thread, and the radial dimension of the press-fitting segment 152 gradually increases in the direction away from the bolt segment 151, forming a press-fitting protrusion. This arrangement facilitates the rapid processing and forming of the press-fitting protrusion, facilitating its matching processing with the through-hole of the slide 17. It also facilitates the detachable installation of the press-fitting member 15 and the press-fitting protrusion's tight clamping of the slide 17.

[0111] In the embodiments shown in Figures 1 to 23 (embodiments 1 and 2), the cavity area surrounded by the first valve core 11, the second valve core 12, and the valve housing 20 forms a back-pressure chamber 503. The fluid in the second valve core 12 does not flow with the fluid in the back-pressure chamber 503, while the fluid in the first valve core 11 flows with the fluid in the back-pressure chamber 503. With this arrangement, part of the fluid flowing through the first flow path 501 will flow through the valve core sealing gasket 42 into the back-pressure chamber 503 and exert downward pressure on the second valve core 12, further improving the reliability of the pressure on the second valve core 12.

[0112] Specifically, as shown in Figure 7, the multi-way valve also includes a valve core sealing gasket 42 arranged around the first valve core 11. The valve core sealing gasket 42 is arranged on the side wall of the cavity of the valve housing 20 and is sealed with the outer periphery of the first valve core 11. The valve core sealing gasket 42 is provided with a first opening 421 that passes through the side wall of the valve core sealing gasket 42 along the axial direction of the first valve core 11. The fluid in the first valve core 11 flows through the first opening 421 on the side wall of the valve core sealing gasket 42 and the fluid in the back pressure chamber 503.

[0113] In this embodiment, the valve core sealing gasket 42 also seals against the sidewall of the cavity of the valve housing 20. The first opening 421 penetrates the valve core sealing gasket 42 along the axial direction of the first valve core 11 and communicates with the back-pressure chamber 503. The back-pressure chamber 503 communicates with the second flow path 502 and is separated from the first flow path 501. With this arrangement, part of the fluid flowing through the second flow path 502 flows into the back-pressure chamber 503 through the first opening 421 that penetrates the valve core sealing gasket 42, exerting downward pressure on the second valve core 12, further improving the reliability of the pressure on the second valve core 12.

[0114] It will be appreciated that in this embodiment, the first valve core 11 has multiple first circulation channels 1101 circumferentially, and the valve core sealing gasket 42 further has multiple second openings 422. The first openings 421 and the multiple second openings 422 are spaced apart along the circumference of the first valve core 11. When any first circulation channel 1101 is connected to two second openings 422, it forms a portion of a first flow path 501. This arrangement facilitates the formation of different first flow paths 501 in the first valve core 11 and facilitates switching between operating modes.

[0115] Specifically, in the embodiments shown in Figures 1 to 23 (Examples 1 and 2), the multi-way valve further includes a support seat 60, which is disposed on the bottom wall of the cavity of the valve housing 20 and is partially parallel to the side walls of the cavity of the valve housing 20. The support seat 60 is sleeved around the outer periphery of the second valve core 12 and supports the valve core sealing gasket 42. The cavity area surrounded by the support seat 60, the first valve core 11, and the second valve core 12 forms a back pressure cavity 503. This arrangement facilitates support for the valve core sealing gasket 42 and facilitates the formation of the back pressure cavity 503.

[0116] Taking the first embodiment shown in Figure 5 as an example, the support seat 60 has a limiting protrusion 61 and a first reset protrusion 62. The limiting protrusion 61 cooperates with the first opening 421 to limit the relative rotation of the support seat 60 and the valve core sealing gasket 42. The bottom of the first valve core 11 has a second reset protrusion (the second stop block 116 shown in Figure 30). The first reset protrusion 62 and the second reset protrusion cooperate in the circumferential stop direction. The position when the first reset protrusion 62 and the second reset protrusion resist can be the starting position of the rotation of the first valve core 11.

[0117] In this embodiment, the relative rotation between the support seat 60 and the valve core sealing gasket 42 is restricted by the limiting protrusion 61, and the first valve core 11 is rotatably arranged in the valve core sealing gasket 42. When the first valve core 11 needs to be rotated to the initial position, the first valve core 11 can be rotated and the first reset protrusion 62 is matched with the second reset protrusion stopper, which is conducive to improving the convenience and reliability of adjusting the first valve core 11 back to the initial position.

[0118] As shown in Figures 1 to 23 (i.e., in Example 1 and Example 2), the valve housing 20 is provided with a plurality of first flow ports 211, a plurality of second flow ports 212, and a plurality of first flow cavities 202, and the plurality of first flow cavities 202 are connected to the plurality of first flow ports 211 in a one-to-one correspondence; the first valve core 11 has a plurality of first flow channels 1101, and the first flow channels 1101 are connected to the corresponding first flow cavities 202, and the connection between the first flow ports 211 is switched by the rotation of the first valve core 11; the second valve core 12 has a plurality of second flow channels 1201, and the second flow channels 1201 are connected to the corresponding second flow ports 212, and the connection between the second flow ports 212 is switched by the rotation of the second valve core 12; the second flow channels 1201 are not connected to the first flow channels 1101.

[0119] In this embodiment, the bottom wall of the valve housing 20 is a bottom plate 21, a plurality of first flow ports 211 are arranged at the edge of the bottom plate 21, a plurality of second flow ports 212 are arranged in the middle of the bottom plate 21, and the circumferential side wall of the valve housing 20 includes an outer wall 22 and an inner wall 23, and a plurality of first flow cavities 202 are formed between the outer wall 22 and the inner wall 23. When the first valve core 11 rotates, the connection between the first flow ports 211 can be switched (so that the first working condition is any one of the first sub-working conditions); similarly, when the second valve core 12 rotates, the connection between the second flow ports 212 can be switched (so that the second working condition is any one of the second sub-working conditions). Since a first flow cavity 202 is formed between the outer wall 22 and the inner wall 23, it is convenient for the fluid to enter the first valve core 11 from the first flow port 211; in addition, the first flow path passing through the first valve core 11 and the second flow path passing through the second valve core 12 are not connected, so that the first valve core 11 and the second valve core 12 do not affect each other. Even if the structure of the first valve core 11 is adjusted, it will not affect the use of the second valve core 12. The adjustment of the structure of the second valve core 12 will not affect the use of the first valve core 11. The overall switching control program is simple. With the cooperation of the first valve core 11 and the second valve core 12, a variety of different circulation modes and circulation working conditions can be formed to meet user needs.

[0120] Specifically, the second valve core 12 is located in the middle of the bottom plate 21, one end of the first valve core 11 along the axis of the multi-way valve is located at the top of the second valve core 12, and the other end of the first valve core 11 along the axis of the multi-way valve is against the top of the valve shell 20; the first circulation channel 1101 and its corresponding two first circulation cavities 202 and two first circulation ports 211 constitute the first flow path 501, and the second circulation channel 1201 and its corresponding two second circulation ports 212 constitute the second flow path 502; the inlet and outlet of the first circulation channel 1101 are both located circumferentially of the first valve core 11, and the inner wall 23 is provided with an opening opposite to the circumferential inlet and outlet of the first valve core 11; the inlet and outlet of the second circulation channel 1201 are both located at one end of the second valve core 12 facing the bottom plate 21.

[0121] In this embodiment, the inner sidewall 23 is provided with an opening circumferentially opposite to the first valve core 11, which can be arranged corresponding to the first circulation cavity 202, thereby connecting the inlet and outlet of the first circulation channel 1101 with the corresponding first circulation port 211. On the other hand, when the multi-way valve provided in this embodiment is in operation, the fluid enters the first valve core 11 from a first circulation port 211, then passes through a first circulation channel 1101 in the first valve core 11, and finally flows out through another first circulation port 211. The fluid flows into the second valve core 12 from a second circulation port 212, then passes through a second circulation channel 1201 in the second valve core 12, and finally flows out through another second circulation port 212. The first circulation port 211 and the second circulation port 212 are separately provided and do not communicate with each other, and the first circulation channel 1101 and the second circulation channel 1201 are separately provided and do not communicate with each other. Therefore, the first flow path 501 and the second flow path 502 are not connected. Such a setting is conducive to the separate control of the first valve core 11 and the second valve core 12. Adjusting the structure of the first circulation channel 1101 in the first valve core 11 will not affect the flow path through the second valve core 12. Similarly, adjusting the structure of the second circulation channel 1201 in the second valve core 12 will not affect the flow path through the first valve core 11. When the first valve core 11 and the second valve core 12 are used in conjunction, they can have more conduction modes and flow conditions, and the control of the conduction mode is relatively simple.

[0122] It is understood that the distribution of the multiple first circulation channels 1101 of the first valve core 11 in multiple embodiments of the present application is the same, that is, the internal cross-sectional effects thereof can all be as shown in Figure 13. Taking the first embodiment shown in Figures 11 to 13 as an example, the multiple first circulation channels 1101 include a first flow channel 11011, a second flow channel 11012, a third flow channel 11013, and a fourth flow channel 11014 arranged at intervals. By rotating the first valve core 11, the first circulation port 211 is connected to its corresponding first flow channel 11011, second flow channel 11012, third flow channel 11013, or fourth flow channel 11014 to switch the circulation mode of the first circulation port 211. In this manner, when the first valve core 11 rotates, the first flow channel 11011, the second flow channel 11012, the third flow channel 11013, and the fourth flow channel 11014 can be connected to the first circulation port 211, thereby achieving the purpose of switching the first working state of the first valve core 11.

[0123] Specifically, the first valve core 11 includes a first circular plate 111, a second circular plate 112, and a first partition 113. The first partition 113 is connected to the first circular plate 111 and the second circular plate 112 on both sides, and the length of the first partition 113 is equal to the diameter of the first circular plate 111. The first flow channel 11011 and the second flow channel 11012 are spaced apart on one side of the first partition 113, and the third flow channel 11013 and the fourth flow channel 11014 are spaced apart on the other side of the first partition 113. This arrangement allows the first flow channel 11011 and the second flow channel 11012 to be separated from the third flow channel 11013 and the fourth flow channel 11014 by the first partition 113, facilitating the initial formation of multiple flow channels.

[0124] Furthermore, the first valve core 11 also includes a second partition plate 114 and a third partition plate 115. Both sides of the second partition plate 114 and both sides of the third partition plate 115 are respectively connected to the first circular plate 111 and the second circular plate 112. The second partition plate 114 is perpendicular to the first partition plate 113. One side of the second partition plate 114, one side of the first partition plate 113, the first circular plate 111 and the second circular plate 112 form a first flow channel 11011. The other side of the second partition plate 114, one side of the first partition plate 113, the first circular plate 111 and the second circular plate 112 form a second flow channel 11012. One side of the third partition plate 115, the other side of the first partition plate 113, the first circular plate 111 and the second circular plate 112 form a third flow channel 11013. The other side of the third partition plate 115, the first circular plate 111 and the second circular plate 112 form a fourth flow channel 11014. With this arrangement, the second partition plate 114 and the third partition plate 115 respectively separate the first flow channel 11011 from the second flow channel 11012 and the third flow channel 11013 from the fourth flow channel 11014, thereby ensuring the reliability and stability of the molding of multiple flow channels.

[0125] It is understandable that the number of the first circulation channels 1101 and the number of partitions provided can be adjusted according to actual conditions.

[0126] In the first embodiment shown in FIG14 , the plurality of second circulation channels 1201 include a fifth flow channel 12011, a sixth flow channel 12012, a seventh flow channel 12013, and an eighth flow channel 12014, which are spaced apart. The second valve core 12 rotates to connect the second circulation port 212 to the corresponding fifth flow channel 12011, sixth flow channel 12012, seventh flow channel 12013, or eighth flow channel 12014, thereby switching the circulation mode of the second circulation port 212. With this arrangement, when the second valve core 12 rotates, the fifth flow channel 12011, sixth flow channel 12012, seventh flow channel 12013, or eighth flow channel 12014 can be connected to the second circulation port 212, thereby switching the second valve core 12 to the second operating state.

[0127] Specifically, the second valve core 12 includes a first sleeve 121, a second sleeve 122, a first baffle 1231, a second baffle 1232 and a sealing plate 124. The first sleeve 121 and the second sleeve 122 are coaxially arranged, and the first sleeve 121, the second sleeve 122, the first baffle 1231, and the second baffle 1232 are all connected to the sealing plate 124. Both ends of the first baffle 1231 and both ends of the second baffle 1232 are respectively connected to the inner wall of the first sleeve 121 and the outer wall of the second sleeve 122. The first baffle 1231 and the second baffle 1232 are respectively arranged on both sides of the second sleeve 122 and are both located on a plane passing through the axis of the second sleeve 122. The fifth flow channel 12011 and the sixth flow channel 12012 are spaced apart on one side of the first baffle 1231, and the seventh flow channel 12013 and the eighth flow channel 12014 are located on the other side of the first baffle 1231. By adopting the above-mentioned setting method, the fifth flow channel 12011 and the sixth flow channel 12012 can be spaced apart on the same side of the first baffle 1231 and the second baffle 1232, and the seventh flow channel 12013 and the eighth flow channel 12014 can be spaced apart on the other side of the first baffle 1231 and the second baffle 1232, so that they can be connected with the second flow port 212 respectively, which facilitates the initial forming of multiple flow channels.

[0128] Furthermore, the second valve core 12 further includes a third baffle 1233, a fourth baffle 1234 and a fifth baffle 1235. Both ends of the third baffle 1233, both ends of the fourth baffle 1234 and both ends of the fifth baffle 1235 are respectively connected to the inner wall of the first sleeve 121 and the outer wall of the second sleeve 122. The fifth baffle 1235 is perpendicular to the first baffle 1231 or the second baffle 1232. The inner wall of the first sleeve 121, the outer wall of the second sleeve 122, the blocking plate 124, one side of the first baffle 1231 and one side of the fifth baffle 1235 form a fifth flow channel 12011. The inner wall, the outer wall of the second sleeve 122, the sealing plate 124, one side of the second baffle 1232, and the other side of the fifth baffle 1235 form a sixth flow channel 12012, the inner wall of the first sleeve 121, the inner cavity of the second sleeve 122, the sealing plate 124, the other side of the first baffle 1231, the other side of the second baffle 1232, one side of the fourth baffle 1234, and one side of the third baffle 1233 form a seventh flow channel 12013, and the inner wall of the first sleeve 121, the outer wall of the second sleeve 122, the other side of the fourth baffle 1234, and the other side of the third baffle 1233 form an eighth flow channel 12014. With this arrangement, the third baffle 1233 , the fourth baffle 1234 and the fifth baffle 1235 are used to further achieve independent spacing of the fifth flow channel 12011 , the sixth flow channel 12012 , the seventh flow channel 12013 and the eighth flow channel 12014 , thereby ensuring the reliability and stability of the molding of multiple flow channels.

[0129] In embodiment 2 as shown in Figure 21, the second valve core 12 includes a first sleeve 121, a second sleeve 122, a sealing plate 124, a sixth baffle 1236 and a seventh baffle 1237. The first sleeve 121 and the second sleeve 122 are coaxially arranged, and the first sleeve 121, the second sleeve 122, the sixth baffle 1236 and the seventh baffle 1237 are all connected to the sealing plate 124. The sixth baffle 1236 and the seventh baffle 1237 are symmetrically arranged on both sides of the second sleeve 122, and are both located on a plane passing through the axis of the second sleeve 122.

[0130] Preferably, the multi-way valve further includes an outer sealing gasket, which is disposed on the bottom plate 21 and is used to seal the opening peripheries of the first flow port 211 and the second flow port 212 to ensure the sealing of the multi-way valve.

[0131] In the first embodiment shown in Figures 1 to 15, there are eight first circulation cavities 202 and eight first circulation ports 211, and they are arranged in a one-to-one correspondence. When the first flow channel 11011, the second flow channel 11012, the third flow channel 11013 and the fourth flow channel 11014 in the first valve core 11 correspond to the eight first circulation cavities 202 and the eight first circulation ports 211, there are eight circulation modes (i.e., eight first working conditions) when the first valve core 11 rotates. As shown in Figure 15, V1-V8 respectively represent the eight first circulation ports 211. By rotating the first valve core 11, the second valve core 12 can be converted into the following eight communication modes (second sub-working conditions):

[0132] The first connection mode: V1 and V8 are connected, V2 and V3 are connected, V4 and V7 are connected, and V5 and V6 are connected;

[0133] The second connection mode: V1 and V2 are connected, V3 and V4 are connected, V5 and V8 are connected, and V6 and V7 are connected;

[0134] The third connection mode: V2 and V3 are connected, V4 and V5 are connected, V6 and V1 are connected, and V7 and V8 are connected;

[0135] The fourth connection mode: V3 and V4 are connected, V5 and V6 are connected, V7 and V2 are connected, and V8 and V1 are connected;

[0136] The fifth connection mode: V4 and V5 are connected, V6 and V7 are connected, V8 and V3 are connected, and V1 and V2 are connected;

[0137] The sixth connection mode: V5 and V6 are connected, V7 and V8 are connected, V1 and V4 are connected, and V3 and V2 are connected;

[0138] The seventh connection mode: V6 and V7 are connected, V8 and V1 are connected, V2 and V5 are connected, and V3 and V4 are connected;

[0139] The eighth connection mode: V7 and V8 are connected, V1 and V2 are connected, V3 and V6 are connected, and V4 and V5 are connected.

[0140] Similarly, in the first embodiment shown in Figures 1 to 15, there are eight second flow ports 212, and the second flow channels 1201 are connected to the corresponding second flow ports 212. When the fifth flow channel 12011, the sixth flow channel 12012, the seventh flow channel 12013 and the eighth flow channel 12014 in the second valve core 12 correspond to the eight second flow ports 212, there are eight flow modes (i.e., eight second operating conditions) when the second valve core 12 rotates. In Figure 5, Q1-Q8 respectively represent the eight second flow ports 212. By rotating the second valve core 12, the second valve core 12 can be switched between the following eight communication modes (second sub-operating conditions):

[0141] The first connectivity mode: Q1 and Q8 are connected, Q2 and Q3 are connected, Q4 and Q7 are connected, and Q5 and Q6 are connected;

[0142] The second connectivity mode: Q1 and Q2 are connected, Q3 and Q4 are connected, Q5 and Q8 are connected, and Q6 and Q7 are connected;

[0143] The third connectivity mode: Q2 and Q3 are connected, Q4 and Q5 are connected, Q6 and Q1 are connected, and Q7 and Q8 are connected;

[0144] The fourth connectivity mode: Q3 and Q4 are connected, Q5 and Q6 are connected, Q7 and Q2 are connected, and Q8 and Q1 are connected;

[0145] The fifth connectivity mode: Q4 and Q5 are connected, Q6 and Q7 are connected, Q8 and Q3 are connected, and Q1 and Q2 are connected;

[0146] The sixth connectivity mode: Q5 and Q6 are connected, Q7 and Q8 are connected, Q1 and Q4 are connected, and Q3 and Q2 are connected;

[0147] The seventh connectivity mode: Q6 and Q7 are connected, Q8 and Q1 are connected, Q2 and Q5 are connected, and Q3 and Q4 are connected;

[0148] The eighth connectivity mode: Q7 and Q8 are connected, Q1 and Q2 are connected, Q3 and Q6 are connected, and Q4 and Q5 are connected.

[0149] In summary, the multi-way valve in the first embodiment has a total of 64 flow modes (flow conditions).

[0150] It can be understood that the flow channel division of the first valve core 11 and the number of circulation modes it has are the same as those in Example 1, that is, it has 8 circulation modes, and the number of second circulation ports 212 and the number of circulation modes (second working conditions) of the second valve core 12 can be adaptively adjusted according to actual conditions. As shown in Figures 16 to 23, in Example 2, there are 4 second circulation ports 212, namely Q1, Q2, Q3, and Q4 (as shown in Figure 23), and there are two second circulation channels 1201 (as shown in Figure 21). When the second valve core 12 rotates, two communication modes (second sub-working conditions) can be realized, one of which is that Q1 and Q2 are connected, and Q3 and Q4 are connected, and the other is that Q1 and Q4 are connected, and Q3 and Q2 are connected. In summary, the multi-way valve in Example 2 has a total of 16 circulation modes (circulation working conditions).

[0151] As shown in Figures 24 to 30, Example 3 of the present application discloses a multi-way valve. Unlike the above-mentioned embodiments, the second valve core 12 in Example 3 is rotatably disposed within the cavity of the valve housing 20, so that a second flow port 212 opposite the second valve core 12 can be fully opened, fully closed, or partially closed. The rotation of the second valve core 12 can adjust the flow rate of the second flow port 212, thereby improving the applicability of the multi-way valve.

[0152] As shown in Figures 24 to 29, the second valve core 12 in Example 3 includes a valve plate 125, and the slide 17 is arranged in the cavity of the valve housing 20 and has a third opening 1702, and the third opening 1702 corresponds one-to-one to the second flow port 212; the valve plate 125 rotates on the surface of the slide 17 and seals with the slide 17, so that the valve plate 125 is fully opened or fully closed or partially closed. The third opening 1702 corresponding to it.

[0153] For example, when there are two second flow openings 212, the valve disc 125 can be partially positioned at the first second flow opening 212 and the area of ​​the valve disc 125 at the second flow opening 212 can be adjusted, while the other second flow opening 212 is fully open, thereby achieving the purpose of regulating the flow rate of one second flow opening 212. Alternatively, a portion of the valve disc 125 can be positioned at one second flow opening 212 and the other portion at the other second flow opening 212, and the area ratio of the valve disc 125 at the two second flow openings 212 can be adjusted according to actual conditions, thereby achieving the purpose of regulating the flow rate of the two second flow openings 212.

[0154] Specifically, the slide 17 is further provided with a notch 1703, which is directly opposite the bottom wall of the valve housing 20. With this arrangement, the valve disc 125 can first be rotated to a position opposite the notch 1703 of the slide in the axial direction of the multi-way valve. The valve disc 125 can then be rotated so that part of the valve disc 125 is opposite the notch 1703 of the slide, while another part of the valve disc 125 is opposite one of the third openings 1702, thereby partially blocking the third opening 1702, without affecting the fully open state of the other third openings 1702.

[0155] The multi-way valve provided in Example 3 further includes a valve core seat 70 located within the cavity of the valve housing 20. The valve disc 125 and the slide 17 are both located within the valve core seat 70. The inner wall of the valve core seat 70 is provided with a groove 71 and a stop protrusion 72. The slide 17 is located within the groove 71 and abuts against both ends of the stop protrusion 72 (in the circumferential direction of the multi-way valve). The valve disc 125 rotates within the groove 71 and abuts against both ends of the stop protrusion 72 (in the circumferential direction of the multi-way valve). This arrangement prevents the slide 17 from rotating while limiting the rotation angle of the valve disc 125.

[0156] Preferably, the inner wall of the valve core seat 70 in this embodiment is also provided with a first stop block 73, and the bottom of the first valve core 11 is provided with a second stop block 116. The position when the first stop block 73 and the second stop block 116 are in resistance can be the starting position of the rotation of the first valve core 11.

[0157] As shown in Figure 29, the valve plate 125 includes a first plate body 1251 and a second plate body 1252 that are connected to each other. The second plate body 1252 rotates to the top of the second circulation port 212 to adjust the flow of the second circulation port 212. The shape of the second plate body 1252 matches the shape of the third opening 1702 and the second circulation port 212. The first plate body 1251 is rotatably arranged, and the first plate body 1251 drives the second plate body 1252 to rotate; wherein, the shape of the first plate body 1251 is circular, the shape of the second plate body 1252 is fan-shaped and is arranged on the outer periphery of the first plate body 1251, and the third opening 1702 and the second circulation port 212 are both fan-shaped structures.

[0158] In this embodiment, the shape of the second plate body 1252 of the valve plate 125 can cover the two third openings 1702. By rotating the second plate body 1252, at least one third opening 1702 and the second flow port 212 can be avoided or blocked, thereby achieving the adjustment of the flow of the second flow port 212.

[0159] Furthermore, the slide 17 includes a third plate 171 and a fourth plate 172 connected to each other. The third plate 171 is circular and coaxially arranged with the first plate 1251. The fourth plate 172 is fan-shaped. The third plate 171 is installed in the valve housing 20. One side of the fourth plate 172 has two third openings 1702 spaced apart, and the other side of the fourth plate 172 has a notch 1703. This fan-shaped configuration facilitates the fit of the fourth plate 172 with the second plate 1252 and facilitates the provision of the third openings 1702.

[0160] In the multi-way valve of the third embodiment, the first valve core shaft 161 and the second valve core shaft 162 are integrally formed as the valve core shaft 16. The metal sleeve 181 is sleeved on and connected to the valve core shaft 16. The metal sleeve 181 is inserted into the first plate 1251 of the valve disc 125 and engages with the first plate 1251. The valve core shaft 16 is rotatably arranged to drive the metal sleeve 181 to rotate, and the metal sleeve 181 drives the valve disc 125 to rotate. This arrangement facilitates flow adjustment of the second flow port 212.

[0161] Preferably, the metal sleeve 181 has a limiting section, and the valve disc 125 has a limiting opening 1253. The limiting section and limiting opening 1253 are shaped to match, and the limiting section and limiting opening 1253 cooperate in a limiting manner. This arrangement allows the metal sleeve 181 to drive the valve disc 125 in rotation through the limiting cooperation between the limiting section and limiting opening 1253. In this embodiment, the limiting section has a hexagonal cross-section, and the limiting opening 1253 is a hexagonal opening.

[0162] Specifically, the multi-way valve also includes an actuator, which is driven and connected to the first valve core 11. When the actuator drives the first valve core 11 to rotate forward, the first valve core 11 drives the second valve core 12 to rotate together, and the flow condition of the multi-way valve is adjusted by changing the angle of the first valve core 11 and the second valve core 12; when the actuator drives the first valve core 11 to rotate reversely, the first valve core 11 rotates alone, and the flow condition of the multi-way valve is adjusted by changing the angle of the first valve core 11.

[0163] In this embodiment, an actuator drives the first valve core 11 to rotate, thereby adjusting the relative angle between the first and second valve cores 11, 12, and regulating the flow conditions of the multi-way valve. Specifically, when the rotation angle of the first valve core 11 needs to be adjusted, the first valve core 11 can be directly driven to rotate in the opposite direction to the desired angle. When the rotation angle of the second valve core 12 needs to be adjusted but the rotation angle of the first valve core 11 is not required, the first valve core 11 is first driven to rotate forward, driving the second valve core 12 to rotate. After the second valve core 12 rotates to the desired angle, the first valve core 11 is reversed and reset. When the rotation angles of both the first and second valve cores 11, 12 need to be adjusted simultaneously, the rotation of the first valve core 11 can be controlled based on the actual angles. This arrangement maximizes the relative rotation range between the first and second valve cores 11, 12, avoiding the limitation of the relative rotation angle of the two valve cores when driven by a single actuator in the prior art, thereby improving the applicability of the multi-way valve.

[0164] It can be understood that if the forward direction in the embodiment is clockwise, the reverse direction is counterclockwise; conversely, if the forward direction in the embodiment is counterclockwise, the reverse direction is clockwise, which can be set according to actual conditions.

[0165] Specifically, in this embodiment, the flow condition is formed by a first working condition and a second working condition. The first valve core 11 and the second valve core 12 respectively form the first working condition and the second working condition. The first working condition includes a variety of different first sub-conditions, and the second working condition includes a variety of different second sub-conditions. By rotating the first valve core 11, the first working condition can be any first sub-condition, and by rotating the second valve core 12, the second working condition can be any second sub-condition. Any first sub-condition and any second sub-condition can form a different flow condition.

[0166] The valve core component 10 further includes a first transmission structure 13 and a second transmission structure 14 that cooperate with each other. The first transmission structure 13 and the second transmission structure 14 are respectively disposed on the second valve core 12 and the first valve core 11. The first transmission structure 13 and the second transmission structure 14 form a ratchet mechanism. This arrangement helps to increase the relative rotation range of the first valve core 11 and the second valve core 12, while also facilitating the transmission drive of the second valve core 12 by the first valve core 11.

[0167] It can be understood that in other embodiments not shown in the figures, the first transmission structure 13 can be set on the first valve core 11, and the second transmission structure 14 can be set on the second valve core 12. The correspondence between the first transmission structure 13, the second transmission structure 14 and the first valve core 11, the second valve core 12 can be adjusted according to actual conditions.

[0168] In the embodiments shown in Figures 1 to 23 (i.e., in Embodiments 1 and 2), the first transmission structure 13 is arranged on the side of the second valve core 12 facing the first valve core 11. The first transmission structure 13 has a ratchet groove 131. The ratchet groove 131 has a guide surface 1311 extending circumferentially along the second valve core 12 and a stop surface 1312 extending axially along the second valve core 12. The two ends of the guide surface 1311 are spaced apart in the axial direction of the second valve core 12 to form the stop surface 1312. The second transmission structure 14 abuts against the guide surface 1311 and can move along the extension direction of the guide surface 1311. When the actuator drives the first valve core 11 to rotate in the forward direction, the second transmission structure 14 and the stop surface 1312 push and cooperate. This arrangement ensures that the first valve core 11 can rotate independently in the reverse direction relative to the second valve core 12, while ensuring that when the first valve core 11 rotates in the forward direction, the second transmission structure 14 can push against the first transmission structure 13 and drive the second valve core 12 to rotate together.

[0169] Specifically, the second transmission structure 14 is arranged on the side of the first valve core 11 facing the second valve core 12, and the second transmission structure 14 includes a limit member 141 and an elastic member 142. The limit member 141 is in contact with the guide surface 1311 through the elastic member 142. When the actuator drives the first valve core 11 to rotate forward, the limit member 141 and the stop surface 1312 are pushed and matched; there are multiple ratchet grooves 131. When the actuator drives the first valve core 11 to rotate reversely, the limit member 141 slides through multiple guide surfaces 1311 in sequence, and the changes of the elastic member 142 when moving along any guide surface 1311 are the same.

[0170] In this embodiment, the limiter 141 is configured to contact the ratchet groove 131, and the elastic member 142 is configured to ensure the continuity of the contact between the limiter 141 and the ratchet groove 131. The limiter 141 is configured to swing or retract under the action of the elastic member 142, thereby preventing the limiter 141 from separating from the ratchet groove 131 during movement, thereby preventing the control of the second valve core 12 from failing. Furthermore, in this embodiment, there are multiple ratchet grooves 131, that is, multiple stop surfaces 1312. This configuration helps reduce the angle required for the first valve core 11 to rotate to a position of abutment with the second valve core 12 when the first valve core 11 drives the second valve core 12 to rotate, thereby improving the convenience of adjustment. Furthermore, the elastic member 142 exhibits the same expansion and contraction changes when moving along any guide surface 1311, which helps ensure the consistency of the multiple guide surfaces 1311 and facilitates the processing and configuration of the multiple guide surfaces 1311.

[0171] Furthermore, there are multiple ratchet grooves 131, and the multiple ratchet grooves 131 are distributed along the circumference of the second valve core 12. The inclination direction and inclination angle of the multiple guide surfaces 1311 are the same. A stop surface 1312 is connected between any two adjacent guide surfaces 1311, and the stop surfaces 1312 are respectively connected to the ends of the guide surfaces 1311 on both sides at both ends in the axial direction of the second valve core 12; there are multiple second transmission structures 14, and the multiple second transmission structures 14 are distributed along the circumference of the first valve core 11 and correspond to different ratchet grooves 131.

[0172] In this embodiment, the multiple ratchet grooves 131 are identical, ensuring the stability and consistency of the first transmission structure 13 in guiding and stopping the second transmission structure 14. Specifically, when the first valve core 11 rotates in the opposite direction, the movement direction of the second transmission structure 14 is the direction from low to high of the guide surface 1311. As the second transmission structure 14 moves from the low position to the high position of the guide surface 1311, the elastic member 142 is gradually compressed until the limit member 141 of the second transmission structure 14 enters the next ratchet groove 131. The elastic member 142 stretches and causes the limit member 141 to abut the low position of the next ratchet groove 131. Thereafter, the limit member 141 will move again from the low position to the high position of the guide surface 1311 of the ratchet groove 131. The first transmission structure 13 will repeat the above movement until the first valve core 11 is rotated to the desired angle. When the first valve core 11 rotates forward, the movement direction of the second transmission structure 14 is the direction from high to low of the guide surface 1311. The limiter 141 of the second transmission structure 14 moves from high to low along the guide surface 1311 until it contacts the front stop surface 1312. Because the elastic member 142 provides elastic force on the limiter 141 to press on the guide surface 1311, the end of the limiter 141 contacts the guide surface 1311, and the side of the limiter 141 contacts the stop surface 1312. Continuing to rotate the first valve core 11 and the second transmission structure 14 will push the first transmission structure 13 and the second valve core 12 to rotate together, thereby achieving the joint drive of the first valve core 11 and the second valve core 12. Furthermore, the second transmission structure 14 is provided in multiple parts to ensure the reliability and stability of the cooperation between the first transmission structure 13 and the second transmission structure 14, while ensuring the pushing effect of the second transmission structure 14 on the first transmission structure 13.

[0173] Specifically, as shown in Figures 1 to 15, embodiment 1 of the present application provides a multi-way valve. In this embodiment, the forward direction is the clockwise direction and the reverse direction is the counterclockwise direction, that is, when the first valve core 11 rotates counterclockwise, the second valve core 12 does not rotate. When the first valve core 11 rotates clockwise, the first valve core 11 drives the second valve core 12 to rotate. The first transmission structure 13 includes a plurality of limit blocks 132 arranged on the top of the second valve core 12. The plurality of limit blocks 132 are distributed along the circumference of the second valve core 12 and are connected end to end. The limit blocks 132 extend along the circumference of the second valve core 12 and the top surface is inclined relative to the top surface of the second valve core 12. One end of the top surface of the limit block 132 extends to the top surface of the second valve core 12. A ratchet groove 131 is formed between any two adjacent limit blocks 132. This arrangement facilitates the processing of the ratchet groove 131.

[0174] As shown in Figures 3 to 6, the second transmission structure 14 includes a limit member 141 and an elastic member 142. The limit member 141 includes a push block 1411, a fixed block 1412 and a connecting member 1413. The fixed block 1412 is fixedly arranged at the bottom of the first valve core 11. One end of the push block 1411 is rotatably passed through the fixed block 1412 through the connecting member 1413. The elastic member 142 is a spring piece 1421. The spring piece 1421 is respectively in contact with the bottom of the first valve core 11 and the push block 1411 to limit the other end of the push block 1411 in the ratchet groove 131. The second transmission structure 14 is multiple, and the multiple push blocks 1411 are respectively matched with the ratchet grooves 131 at different positions.

[0175] In this embodiment, the push block 1411 is swingably disposed about its connection with the fixed block 1412 to ensure that it can swing along the guide surface 1311, thereby preventing interference between the push block 1411 and the guide surface 1311, which would prevent the first transmission structure 13 and the second transmission structure 14 from rotating relative to each other. The end of the push block 1411 facing away from the fixed block 1412 contacts the ratchet groove 131 under the action of the spring 1421, thereby ensuring the reliability and stability of the connection between the first transmission structure 13 and the second transmission structure 14.

[0176] As shown in Figure 6, the bottom of the first valve core 11 and the push block 1411 are provided with an installation groove 143 for installing the spring piece 1421. The spring piece 1421 includes two interconnected sheets. There is an angle between the two sheets and both have an elastic tendency to rotate away from each other around the connection position. The two sheets are respectively limited by the inner walls of the two installation grooves 143.

[0177] In this embodiment, the two plates are connected to each other and have a tendency to open to ensure that the end of the push block 1411 facing away from the fixed block 1412 is pressed against the ratchet groove 131. The two plates are restricted by setting the installation groove 143 to prevent the spring piece 1421 from moving or even falling off, resulting in failure of the second transmission structure 14.

[0178] It is understandable that the ratchet mechanism composed of the first transmission structure 13 and the second transmission structure 14 is not limited to the first embodiment. On the basis of ensuring the reliability of the connection and relative movement of the first valve core 11 and the second valve core 12, other ratchet mechanisms that can achieve the same adjustment method are applicable.

[0179] As shown in Figures 16 to 23, Example 2 of the present application provides a multi-way valve. In this embodiment, the forward direction is the clockwise direction and the reverse direction is the counterclockwise direction, that is, when the first valve core 11 rotates counterclockwise, the second valve core 12 does not rotate. When the first valve core 11 rotates clockwise, the first valve core 11 drives the second valve core 12 to rotate. The difference from Example 1 is that, in this embodiment, the first transmission structure 13 includes a first limit plate 133 arranged on the top of the second valve core 12, and the first limit plate 133 has a plurality of ratchet grooves 131 distributed along the circumference of the first limit plate 133. This arrangement facilitates the processing of the ratchet grooves 131. Among them, one end of the bottom surface of the ratchet groove 131 extends to the top surface of the first limit plate 133.

[0180] Specifically, the second transmission structure 14 provided in Example 2 includes a second limit plate 145, a limit member 141 and an elastic member 142. The second limit plate 145 is arranged at the bottom of the first valve core 11 and has a plurality of limit grooves 1451 opening toward the first limit plate 133. The limit member 141 includes a limit column 1414. The elastic member 142 is telescopically inserted into the limit groove 1451 and its two ends are respectively abutted against the top wall of the limit groove 1451 and the top of the limit column 1414. One end of the limit column 1414 is inserted into the limit groove 1451, and the other end of the limit column 1414 cooperates with one of the ratchet grooves 131. There are multiple second transmission structures 14, and multiple limit columns 1414 cooperate with different ratchet grooves 131.

[0181] In this embodiment, the elastic member 142 is a first spring 1422, one end of the limiting column 1414 is movably arranged in the limiting groove 1451, and the other end is in contact with one of the ratchet grooves 131. When the first valve core 11 drives the second transmission structure 14 to rotate in the opposite direction, the limiting column 1414 moves from a high position to a low position along the guide surface 1311 of the ratchet groove 131. In the process of moving along the guide surface 1311, the limiting column 1414 rises and falls relative to the second limiting plate 145 and can pass through multiple ratchet grooves 131 in sequence until the first valve core 11 is rotated to the required angle and stops. When the first valve core 11 drives the second transmission structure 14 to rotate forward, the limiting post 1414 moves from a low position to a high position along the guide surface 1311 of the ratchet groove 131. During the movement along the guide surface 1311, the limiting post 1414 rises and falls relative to the second limiting plate 145 until it reaches the lowest point of the ratchet groove 131 and abuts against the stop surface 1312 of the ratchet groove 131. After that, the first valve core 11 continues to rotate to drive the second valve core 12 to rotate together. This arrangement is conducive to ensuring the reliability and stability of the connection between the first transmission structure 13 and the second transmission structure 14.

[0182] As shown in Figures 31 and 32, embodiment 4 of the present application provides a multi-way valve. In this embodiment, the forward direction is counterclockwise and the reverse direction is clockwise, that is, when the first valve core 11 rotates clockwise, the second valve core 12 does not rotate. When the first valve core 11 rotates counterclockwise, the first valve core 11 drives the second valve core 12 to rotate. The second valve core 12 can also rotate clockwise while the first valve core 11 does not move. The counterclockwise rotation of the second valve core 12 drives the first valve core 11 to rotate at the same time. The difference from the above embodiment 1 is that the first transmission structure 13 includes a ratchet 134, and the second transmission structure 14 includes a plurality of ratchets 144. The plurality of ratchets 144 are distributed along the circumference of the first valve core 11 and cooperate with different ratchet teeth of the ratchet 134.

[0183] In this embodiment, the ratchet 134 is fixedly mounted on the top of the second valve core 12, and a plurality of pawls 144 are distributed along the circumference of the ratchet 134 and are elastically swingably mounted on the bottom of the first valve core 11. When the first valve core 11 rotates in the reverse direction, the pawls 144 rotate and swing as their contact positions with the guide surfaces 1311 change. When the first valve core 11 rotates in the forward direction, the pawls 144 contact the stop surfaces 1312 of the ratchet teeth in front of them, pushing the ratchet 134 and the second valve core 12 to rotate together. This arrangement facilitates the arrangement and installation of the first transmission structure 13 and the second transmission structure 14 while ensuring the reliability of the ratchet mechanism.

[0184] Preferably, the second transmission structure 14 provided in embodiment four also includes a transfer assembly, the pawl 144 includes a transfer block and a main body connected to each other, the transfer block is arranged at the bottom of the first valve core 11 through the transfer assembly, the end of the main body facing away from the transfer block is in contact with the ratchet 134, and the pawl is rotatably arranged around the transfer assembly.

[0185] In this embodiment, the radial dimension of the adapter block is greater than the radial dimension of the main body to ensure the structural strength of the pawl 144 when the pawl 144 is set at the bottom of the first valve core 11 through the adapter assembly. Specifically, the adapter assembly can be composed of an adapter shaft, an adapter bearing, etc. The adapter shaft is fixedly set at the bottom of the first valve core 11, and one end of the adapter shaft protrudes from the bottom of the first valve core 11 and penetrates into the adapter block. The adapter block is rotatably connected to the adapter shaft through the adapter bearing and is limited in position. This arrangement allows the pawl 144 to rotate around the adapter shaft as the rotation center to ensure the reliability of the relative movement between the pawl 144 and the guide surface 1311 and avoid jamming or interference. It is understandable that the adapter assembly includes a mounting member, and the adapter block is connected to the adapter shaft through the mounting member and limits the relative movement of the two to prevent the pawl 144 from falling off. Furthermore, the specific structure and setting of the adapter assembly can be adjusted according to actual conditions and are not limited to the above embodiments. Examples are not given here one by one.

[0186] Furthermore, the second transmission structure 14 also includes a rebound assembly, one end of the rebound assembly is connected to the adapter block or the main body, and the other end of the rebound assembly is connected to the bottom of the first valve core 11 or the adapter assembly. The rebound assembly is used to drive the pawl 144 to rotate in a direction close to the ratchet 134 and press the pawl 144 against the ratchet 134.

[0187] In this embodiment, a rebound assembly ensures that the pawl 144 can always press against the ratchet 134, thereby ensuring the reliability of the cooperation between the pawl 144 and the ratchet 134. Specifically, the rebound assembly in this embodiment can be a structure capable of exerting a torsional force, such as a torsion spring. Taking the torsion spring as an example, one end of the torsion spring is connected to the adapter shaft, and the other end of the torsion spring is connected to the inner wall of the adapter block. When the ratchet 134 rotates, the pawl 144 swings along with the guide surface 1311. When the pawl 144 swings away from the ratchet 134, the torsion spring is compressed. When the pawl 144 moves from one guide surface 1311 to the next guide surface 1311, the pawl 144 swings toward the ratchet 134 under the action of the expanded elastic force of the torsion spring and presses against the next guide surface 1311. The rebound assembly ensures the reliability and stability of the cooperation between the ratchet 134 and the pawl 144.

[0188] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0189] Unless otherwise specified, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. Technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0190] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0191] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0192] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0193] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A multi-way valve, characterized in that: The multi-way valve comprises a valve housing (20), and a valve core component (10) arranged in a cavity of the valve housing (20), the valve core component (10) comprising a first valve core (11), a second valve core (12), and an elastic support component (18) arranged between the first valve core (11) and the second valve core (12), the elastic support component (18) being used to support the first valve core (11), the first valve core (11) being limited between the valve housing (20) and the elastic support component (18); the elastic force of the elastic support component (18) presses the second valve core (12) against the bottom wall of the cavity of the valve housing (20).

2. The multi-way valve according to claim 1, characterized in that: The valve core component (10) also includes a second valve core shaft (162) connected to the valve housing (20), and the elastic support assembly (18) includes a metal sleeve (181) and a second spring (182), the metal sleeve (181) is fixedly sleeved on the outer periphery of the second valve core shaft (162), and the second spring (182) is sleeved on the outer periphery of the second valve core shaft (162) and the two ends thereof are respectively abutted against the top walls of the metal sleeve (181) and the second valve core (12); the first valve core (11) and the metal sleeve (181) are matched with a stopper at one end away from the second spring (182).

3. The multi-way valve according to claim 2, characterized in that: One end of the second valve core shaft (162) is located at the center of the first valve core (11), and the other end of the second valve core shaft (162) is located at the center of the second valve core (12). The second valve core (12) rotates around the second valve core shaft (162), and there is a gap between the metal sleeve (181) and the second valve core shaft (162).

4. The multi-way valve according to claim 2, characterized in that: The metal sleeve (181) comprises a first section (1811) and a second section (1812) which are connected to each other, the second spring (182) abuts against one side of the first section (1811), and the other side of the first section (1811) cooperates with a stopper of the first valve core (11); or, the second spring (182) abuts against one side of the first section (1811) which is away from the second section (1812), and the side of the second section (1812) which is away from the first section (1811) cooperates with a stopper of the first valve core (11).

5. The multi-way valve according to claim 2, characterized in that: The valve core component (10) also includes a pressing plate (43) and a sealing member (44) which are sleeved on the second valve core shaft (162); the pressing plate (43) is fixedly connected to the second valve core shaft (162); the second spring (182) is located between the pressing plate (43) and the metal sleeve (181); and the sealing member (44) is located between the pressing plate (43) and the second valve core (12).

6. The multi-way valve according to claim 2, characterized in that: The bottom of the valve housing (20) has a limiting hole (201), and the valve core component (10) also includes a press-fitting part (15), the first valve core (11) is located on the side of the second valve core (12) away from the limiting hole (201), one end of the second valve core shaft (162) is located in the limiting hole (201), and the press-fitting part (15) is at least partially arranged in the limiting hole (201) and is pushed and fitted with the second valve core shaft (162) to press the second valve core shaft (162) into the limiting hole (201) and limit the axial upward movement of the second valve core shaft (162).

7. The multi-way valve according to claim 6, characterized in that: The multi-way valve also includes a shaft sleeve (30) injection-molded and embedded in the limiting hole (201); one end of the second valve core shaft (162) is located in the shaft sleeve (30); the press-fitting part (15) is at least partially disposed in the shaft sleeve (30) and is limitedly matched with the second valve core shaft (162) and the shaft sleeve (30); the press-fitting part (15) has an external thread, the shaft sleeve (30) has an internal thread, and the press-fitting part (15) and the shaft sleeve (30) are threadedly connected.

8. The multi-way valve according to claim 6, characterized in that: The second valve core shaft (162) includes an axial body (1621) and a limiting end plate (1622) which are connected to each other. The limiting end plate (1622) is arranged at one end of the axial body (1621) and is located in the limiting hole (201). The radial dimension of the limiting end plate (1622) is larger than the radial dimension of the axial body (1621). The press-fitting part (15) is sleeved on the outer periphery of the axial body (1621) and is pushed and fitted with the side of the limiting end plate (1622) away from the bottom surface of the limiting hole (201).

9. The multi-way valve according to claim 1, characterized in that: The valve core component (10) further comprises a press-fitting part (15) and a sliding plate (17), wherein the sliding plate (17) is arranged in the valve housing (20) and the second valve core (12) rotates circumferentially on the surface of the sliding plate (17), the press-fitting part (15) is connected to the valve housing (20), and the sliding plate (17) is sandwiched between the press-fitting part (15) and the valve housing (20).

10. The multi-way valve according to claim 9, characterized in that: One end of the press-fitting piece (15) has a press-fitting protrusion, and the press-fitting protrusion and the slide (17) are push-fitted to press-fit the slide (17) onto the bottom of the cavity of the valve housing (20) during the process of installing the press-fitting piece (15).

11. The multi-way valve according to claim 10, characterized in that: The press-fitting protrusion has a first limiting inclined surface (1521), and the slide (17) has a through hole for passing the press-fitting part (15), and the radial dimension of the through hole gradually decreases in the direction close to the bottom of the valve housing (20) and forms a second limiting inclined surface (1701) adapted to the first limiting inclined surface (1521), and the first limiting inclined surface (1521) and the second limiting inclined surface (1701) are push-fitted.

12. The multi-way valve according to claim 10, characterized in that: The press-fitting part (15) comprises a bolt section (151) and a press-fitting section (152); the outer periphery of the bolt section (151) has an external thread; the radial dimension of the press-fitting section (152) gradually increases in a direction away from the bolt section (151); and the press-fitting section (152) forms a press-fitting protrusion.

13. The multi-way valve according to claim 9, characterized in that: The bottom of the valve housing (20) also has a sealing groove opening toward the interior of the cavity of the valve housing (20), and the multi-way valve also includes a flow path sealing gasket (41) arranged in the sealing groove, and the sliding plate (17) is located on the top surface of the flow path sealing gasket (41).

14. The multi-way valve according to claim 1, characterized in that: The valve housing (20) is provided with a plurality of first flow ports (211), a plurality of second flow ports (212), and a plurality of first flow chambers (202), and the plurality of first flow chambers (202) are connected to the plurality of first flow ports (211) in a one-to-one correspondence; The first valve core (11) has a plurality of first circulation channels (1101), the first circulation channels (1101) are connected to the first circulation chambers (202) corresponding thereto, and the communication between the first circulation ports (211) is switched by the rotation of the first valve core (11); The second valve core (12) has a plurality of second circulation channels (1201), the second circulation channels (1201) are connected to the corresponding second circulation ports (212), and the communication between the second circulation ports (212) is switched by the rotation of the second valve core (12); The second circulation channel (1201) is not connected to the first circulation channel (1101).

15. The multi-way valve according to claim 14, characterized in that: The bottom wall of the valve housing (20) is a bottom plate (21), a plurality of the first flow openings (211) are arranged at the edge of the bottom plate (21), a plurality of the second flow openings (212) are arranged in the middle of the bottom plate (21), and the circumferential side wall of the valve housing (20) includes an outer wall (22) and an inner wall (23), and a plurality of the first flow chambers (202) are formed between the outer wall (22) and the inner wall (23).

16. The multi-way valve according to claim 15, characterized in that: The second valve core (12) is located in the middle of the bottom plate (21); one end of the first valve core (11) along the axis of the multi-way valve is located at the top of the second valve core (12); the other end of the first valve core (11) along the axis of the multi-way valve is abutted against the top of the valve housing (20); the first circulation channel (1101) and its corresponding two first circulation cavities (202) and two first circulation ports (211) constitute a first flow path (501); the second circulation channel (1201) and its corresponding two second circulation ports (212) constitute a second flow path (502); the inlet and outlet of the first circulation channel (1101) are both located in the circumference of the first valve core (11), and the inner wall (23) is provided with an opening opposite to the circumferential inlet and outlet of the first valve core (11); the inlet and outlet of the second circulation channel (1201) are both located at one end of the second valve core (12) facing the bottom plate (21).

17. The multi-way valve according to claim 1, characterized in that: A cavity area surrounded by the first valve core (11), the second valve core (12) and the valve housing (20) forms a back pressure cavity (503), the fluid in the second valve core (12) does not flow with the fluid in the back pressure cavity (503), and the fluid in the first valve core (11) flows with the fluid in the back pressure cavity (503).

18. The multi-way valve according to claim 17, characterized in that: The multi-way valve also includes a valve core sealing gasket (42) arranged around the first valve core (11), and the valve core sealing gasket (42) is arranged on the side wall of the cavity of the valve housing (20) and is sealed with the outer periphery of the first valve core (11). The valve core sealing gasket (42) is provided with a first opening (421) penetrating the side wall of the valve core sealing gasket (42) along the axial direction of the first valve core (11), and the fluid in the first valve core (11) flows through the first opening (421) on the side wall of the valve core sealing gasket (42) to communicate with the fluid in the back pressure chamber (503).

19. The multi-way valve according to claim 18, characterized in that: The multi-way valve also includes a support seat (60), which is arranged on the bottom wall of the cavity of the valve housing (20) and is partially parallel to the side wall of the cavity of the valve housing (20). The support seat (60) is sleeved on the outer periphery of the second valve core (12) and supports the valve core sealing gasket (42). The cavity area surrounded by the support seat (60), the first valve core (11) and the second valve core (12) forms the back pressure cavity (503).

20. The multi-way valve according to claim 18, characterized in that The support seat (60) has a limiting protrusion (61) and a first reset protrusion (62), and the limiting protrusion (61) cooperates with the first opening (421) to limit the relative rotation of the support seat (60) and the valve core sealing gasket (42). The bottom of the first valve core (11) has a second reset protrusion, and the first reset protrusion (62) and the second reset protrusion cooperate in a circumferential stop.

21. The multi-way valve according to claim 1, characterized in that: The valve housing (20) has a plurality of first flow ports (211) and a plurality of second flow ports (212); the first valve core (11) has a plurality of first flow channels (1101); the first valve core (11) is rotatably disposed in the cavity of the valve housing (20) to switch the communication between the first flow ports (211); the second valve core (12) is rotatably disposed in the cavity of the valve housing (20) to make the second flow port (212) opposite to the second valve core (12) fully open, fully closed or partially closed.

22. The multi-way valve according to claim 21, characterized in that The second valve core (12) includes a valve plate (125), and the multi-way valve also includes a slide (17), wherein the slide (17) is arranged in the cavity of the valve housing (20), and the slide (17) has a third opening (1702), and the third opening (1702) corresponds one-to-one with the second flow port (212); the valve plate (125) rotates on the surface of the slide (17) and is sealed with the slide (17) so that the valve plate (125) fully opens or fully closes or partially closes the third opening (1702) corresponding to it; wherein the slide (17) is also provided with a notch (1703), and the notch (1703) is directly opposite to the bottom wall of the valve housing (20).

23. The multi-way valve according to claim 22, characterized in that The multi-way valve also includes a valve core seat (70) located in the cavity of the valve housing (20); the valve plate (125) and the slide plate (17) are both located in the valve core seat (70); the inner wall of the valve core seat (70) is provided with a groove (71) and a stop protrusion (72); the slide plate (17) is located in the groove (71) and abuts against both ends of the stop protrusion (72); the valve plate (125) rotates in the groove (71) and can abut against both ends of the stop protrusion (72).

24. The multi-way valve according to claim 22, characterized in that The valve core component (10) also includes a second valve core shaft (162) connected to the valve housing (20), and the multi-way valve also includes a metal sleeve (181). The metal sleeve (181) is sleeved on the second valve core shaft (162) and connected to the second valve core shaft (162). The metal sleeve (181) is inserted into the valve plate (125) and is limitedly matched with the valve plate (125). The second valve core shaft (162) is rotatably arranged to drive the metal sleeve (181) to rotate, and the metal sleeve (181) drives the valve plate (125) to rotate.

25. The multi-way valve according to claim 1, characterized in that The multi-way valve further comprises an actuator, which is drivingly connected to the first valve core (11). When the actuator drives the first valve core (11) to rotate in the forward direction, the first valve core (11) drives the second valve core (12) to rotate together, and the flow condition of the multi-way valve is adjusted by changing the angles of the first valve core (11) and the second valve core (12); When the actuator drives the first valve core (11) to rotate in the opposite direction, the first valve core (11) rotates alone, and the flow condition of the multi-way valve is adjusted by changing the angle of the first valve core (11).

26. The multi-way valve according to claim 25, characterized in that The valve core component (10) also includes a first transmission structure (13) and a second transmission structure (14) that cooperate with each other. The first transmission structure (13) and the second transmission structure (14) are respectively arranged on the second valve core (12) and the first valve core (11). One of the first transmission structure (13) and the second transmission structure (14) includes a ratchet (134), and the other includes a plurality of ratchet pawls (144). The plurality of ratchet pawls (144) are distributed along the circumference of the first valve core (11) and cooperate with different ratchet teeth of the ratchet (134). The first transmission structure (13) and the second transmission structure (14) constitute a ratchet mechanism.

27. The multi-way valve according to claim 26, characterized in that The first transmission structure (13) is arranged on the side of the second valve core (12) facing the first valve core (11), and the first transmission structure (13) has a ratchet groove (131), and the ratchet groove (131) has a guide surface (1311) extending along the circumference of the second valve core (12) and a stop surface (1312) extending along the axial direction of the second valve core (12), and the two ends of the guide surface (1311) are spaced apart in the axial direction of the second valve core (12) to form the stop surface (1312), and the second transmission structure (14) and the guide surface (1311) are in abutment with each other and can move along the extension direction of the guide surface (1311); when the actuator drives the first valve core (11) to rotate in the forward direction, the second transmission structure (14) and the stop surface (1312) are in abutment with each other.

28. The multi-way valve according to claim 27, characterized in that There are a plurality of ratchet grooves (131), and the plurality of ratchet grooves (131) are distributed along the circumference of the second valve core (12); the inclination directions and inclination angles of the plurality of guide surfaces (1311) are the same; a stop surface (1312) is connected between any two adjacent guide surfaces (1311); the stop surfaces (1312) are respectively connected to the ends of the guide surfaces (1311) on both sides at both ends along the axial direction of the second valve core (12); there are a plurality of second transmission structures (14), and the plurality of second transmission structures (14) are distributed along the circumference of the first valve core (11) and correspond to different ratchet grooves (131).

29. The multi-way valve according to claim 27, characterized in that The second transmission structure (14) includes a limiting member (141) and an elastic member (142), wherein the limiting member (141) includes a push block (1411), a fixed block (1412) and a connecting member (1413), wherein the fixed block (1412) is fixedly arranged at the bottom of the first valve core (11), and one end of the push block (1411) is rotatably inserted into the fixed block (1412) through the connecting member (1413), and the elastic member (142) is a spring sheet (1421), wherein the spring sheet (1421) is respectively in contact with the bottom of the first valve core (11) and the push block (1411) to limit the other end of the push block (1411) in the ratchet groove (131), and the second transmission structure (14) is multiple, and the multiple push blocks (1411) are respectively matched with the ratchet grooves (131) at different positions.

30. The multi-way valve according to claim 29, characterized in that The bottom of the first valve core (11) and the push block (1411) are provided with a mounting groove (143) for mounting the spring sheet (1421), and the spring sheet (1421) includes two mutually connected sheet bodies, an angle is formed between the two sheet bodies, and both have an elastic tendency to rotate away from each other around the connection position, and the two sheet bodies are respectively limitedly matched with the inner walls of the two mounting grooves (143).

Images